Iowa County Airport

MRJ · KMRJ · Mineral Point, WI · 1,171 ft elevation · var 0W · Non-towered

Overview Weather Runways Comms & NavAids Charts Services & info

Airport information

ICAO / IATA: KMRJ
Coordinates: 42.8868, -90.2362
Elevation: 1,171 ft MSL
Magnetic variation: 0W
Sectional chart: CHICAGO
Airport use: Public
Control tower: No
ARTCC: CHICAGO (ZAU)
Flight service (FSS): GREEN BAY
NOTAM facility: MRJ
Attendance: MON-FRI 0600-1600; SAT-SUN ON CALL
Beacon: white-green (SS-SR)
Segmented circle: No
Wind indicator: yes
Activated: 1962/04
Distance from city: 3 NW

Weather

METAR observed

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TAF forecast

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Sun & FAA night 2026-06-21

Event	Local (CDT)	UTC
Morning civil twilight Loggable night ends	04:47 AM	09:47Z
Sunrise	05:22 AM	10:22Z
Sunset	08:43 PM	01:43Z
Evening civil twilight Loggable night begins	09:18 PM	02:18Z

Loggable night (§1.1)

09:18 PM → 04:47 AM

Night currency (§61.57)

09:43 PM → 04:22 AM

Plan a flight from KMRJ

Destination (ICAO)

TAS (kt)Burn (gph)Reserve (hr)Wind from (°)Wind (kt)

Night operations

Airport lighting: SEE RMK
Rotating beacon: white-green · SS-SR
Pilot-controlled lighting: MIRL RWY 11/29 PRESET TO LOW SS-SR; TO INCR INTST AND ACTVT PAPI RWY 04, 11, 22 & 29; MIRL RWY 04/22 - CTAF. on 122.8 — Chart Supplement ↗

Runway lighting aids — 04: 2-light PAPI (left) · 22: 2-light PAPI (left) · 11: 2-light PAPI (left) · 29: 2-light PAPI (left).

FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.

Traffic pattern

Landing runway

LEFT traffic

Landing: Rwy 04 · 040°
Pattern: left (turns left)
TPA: 2,200 ft MSL (≈1,000 AGL)
CTAF: 122.8

Enter the left downwind for Rwy 04 at 2,200 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).

Runway 04/22

3,600 ft × 60 ft · Asphalt (Good)

Edge lights: Med. Weight bearing: Single wheel 12.5k.

Heading: 040° mag · 40° true
Markings: nonprecision
VGSI: 2-light PAPI (left) (3°)
Traffic pattern: Left

Heading: 220° mag · 220° true
Markings: nonprecision
VGSI: 2-light PAPI (left) (3°)
Traffic pattern: Left

Runway 11/29

5,001 ft × 75 ft · Asphalt (Excellent)

Edge lights: Med.

Heading: 111° mag · 111° true
Markings: nonprecision
VGSI: 2-light PAPI (left) (3°)
Traffic pattern: Left

Heading: 291° mag · 291° true
Markings: nonprecision
VGSI: 2-light PAPI (left) (3°)
Traffic pattern: Left

Will it fit? Your aircraft's required runway length (from the POH) — checked against every runway here

ft · ≥1.5× comfortable, under 1.25× tight · saved across airports

Runway	Length	Your margin
04/22	3,600 ft
11/29	5,001 ft

Communication frequencies

Service	Frequency	Notes
AWOS	118.525	AWOS 3
CNTR	133.95	CHICAGO CNTR
UNIC	122.8	CTAF/UNICOM

Nearby navigation aids

NavAid	Type	Freq	Radial / Dist magnetic
LNR · Lone Rock	VOR-DME	112.80	r191° / 24.9 NM
DBQ · Dubuque	VORTAC	115.80	r031° / 35.8 NM

Procedures at a glance

Lowest mins: RNAV (GPS) · vertical guidance Takeoff mins / ODP ↗ Non-std alternate mins ↗

Approaches4

Minimums & Hot Spots

Chart Supplement FAA A/FD

Open PDF ↗

Preview Chart Supplement

VFR sectional

Open KMRJ on the VFR sectional (SkyVector) ↗

Services

Fuel available: 100LL, Jet A (additive)
Bottled oxygen: LOW
Bulk oxygen: NONE
Airframe service: MAJOR
Powerplant service: MAJOR
Parking: tiedowns, hangars
Other services: Instruction

Ownership & management

Owner

IOWA COUNTY

222 N. IOWA STREET, DODGEVILLE, WI

608-987-9931

Manager

CODY WILLIAMS

3151 STATE RD 39, MINERAL POINT, WI

608-553-7571

Remarks FAA

BIRDS ON & INVOF ARPT.
FOR NOISE ABATEMENT PREFERED NO WIND RY IS RY 29.
FOR CD CTC CHICAGO ARTCC AT 630-906-8921.
MIRL RWY 11/29 PRESET TO LOW SS-SR; TO INCR INTST AND ACTVT PAPI RWY 04, 11, 22 & 29; MIRL RWY 04/22 - CTAF.
FUEL AVBL 24 HR SELF SVC.

Nearby airports

WI16 · Jim Benson FieldPrivate (5 NM)WN28 · Hird AirportPrivate (6 NM)89WI · Tuschen AirportPrivate (9 NM)22WN · Southwind AirportPrivate (11 NM)3WN1 · Digger Doug AirportPrivate (15 NM)KPVB · Platteville Municipal Airport (15 NM)

Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open KMRJ in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.

About KMRJ

Iowa County Airport (MRJ · KMRJ) is an airport in Mineral Point, WI, at 1,171 ft MSL. It has 2 runways, the longest 5,001 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for KMRJ, refreshed from the Aviation Weather Center and FAA NASR.

Does KMRJ have a control tower?

No. Iowa County Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.

What is the longest runway at KMRJ?

Iowa County Airport has 2 runways; the longest is 5,001 ft. See the Runways tab for headings, surface, and lighting.

Where is KMRJ?

Iowa County Airport is in Mineral Point, WI, at an elevation of 1,171 ft MSL. Coordinates: 42.8868, -90.2362.

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